chore(deps): bump very_good_analysis from 5.1.0 to 6.0.0 in /packages/dart_frog (#1432)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tom Arra <[email protected]>

Author: dependabot[bot]

packages/dart_frog/analysis_options.yaml

@@ -1 +1 @@
-include: package:very_good_analysis/analysis_options.5.1.0.yaml
+include: package:very_good_analysis/analysis_options.6.0.0.yaml

packages/dart_frog/pubspec.yaml

@@ -28,7 +28,7 @@ dev_dependencies:
   mocktail: ^1.0.0
   path: ^1.8.2
   test: ^1.19.2
-  very_good_analysis: ^5.1.0
+  very_good_analysis: ">=5.1.0 <7.0.0"
 
 false_secrets:
   - test/src/serve_test.dart